Improvement in crossings for composition pavements



N. B. ABBOTT & J. P. CRANFORD.

cnossxNes FoP. coMPosxTIoN PAVEMENTS. No. 175.318. Patented March 28,1876.

@f6/me? #Y Lgf www M UNITED STATES NATHAN B. ABBOTT AND JOHN P. CRANFORD, O

IMPROVEMENT IN CROSSINGS FORCOMPSITION PAVEMENTS.

Specification forming part of Letters Patent `o.

PATENT (DEEInEt F BROOKLYN, NEW YORK.

. l 'l i 175,318, dated March 28, 1876; application tiled January 21, 1876.

To all whom -it may concern:

Be it known that we, NATHAN B. AEEoTT and JOHN P. ORANFORD, of Brooklyn, in the county of Kings and State of' New York, have invented an Improvement in Cross-Walks for Composition Pavements, ot' which the following is a specification:

Streets and roads have been made ot composition containing bituminous material, sand, gravel, stones, and similar substances, laid down in an arched or curved surface running across the street, so as to throw the water to the gutter-Ways. Pavements of this character are most easily constructed when they excross-walks hence one part of the street is as lean and dry as another in fine Weather, but in cas'es where the pavement is wet, or covered With partially-melted snow, or with Water or mud, tllemyyant o ,fnwmsuitable crossing is inanifestf We meet this Want by an elevated crosswalk applied in a peculiar manner upon the composition pavement, in a strip, say, four or more feet Wide across the roadway, such vation bein g sufcient to cause water to run mud or water upon the crossing.

111 the drawing, Figure l is a partial plan view of the end of the cross-Walk, and Fig. 2 is a vertical cross-section ot' the same.

The roadway is laid in the usual manner with the curved or arched surface, and We then cut into the surface grooves, as seen at a a, for the edges of the materialforming the 0l 1 freely and to prevent the accumulation of cross-Walk, and then coat over the surface of the pavement with bituminous material in a heated condition; then spread upon the same the layer of bituminous concrete, and roll the same to form the proper convex surface for the crosswalk b, care being taken to prevent the surface oi' such cross-walk from containing any depressions in which water can lodge, and we also make the slope between the cross-Walk and the surface of the roadway so gradual as to prevent undue concussion to passing vehicles.

In this mode of laying' the cross-Walk the roadway does not have to be prepared for said cross-walk until the roadway itself is entirely finished, which is a great advantage, especially Where the heavy steam-rollers are employed to roll the pavement in various directions, because this rolling would injure the cross-Walk itl previously laid.

We claim as our invention- NATHAN B. ABBOTT. J. P. ORANFOBD.

Witnesses:

GEo. T. PINCKNEY, CEAS. H. SMITH.

Mig" tS/ll The method herein specified of applying` an p 

